If you have a web site and a blog site, chances are that you have two separate Google sitemaps that list the URLs within each site. I use WordPress for my blog and PHP for my web site. There are many tools/plugins to create these Google sitemaps separately, and this is where the issues lies, and the need for this script.
This means that I have to maintain two Google sitemaps and there is no easy way (i.e. a tool) to generate a proper sitemap for all the pages within my sites. I use the Google Sitemaps plugin for WordPress, but use another sitemap generator for my website.
What the Script does? If you do have two Google sitemaps, then I have enhanced a PHP script to read these two Google sitemaps, extract the URLs and to append/parse them into a file (called urllist.txt) that is used by Yahoo, MSN and Live sitemaps. This helps Yahoo, MSN and Windows Live Search search engine bots to find and index your site pages and aids Search Engine Optimisation (SEO) as they can find all your page URLs more easily.
To read more, and to download the latest version, go to this page:
Google to Yahoo-MSN-Live Sitemaps Creator Tool
Also included in this version is a text file explaining the use of Yahoo’s ApplicationID and Site Explorer tools to enable you to create an easy process of informing Yahoo every time you update your urllist.txt file. This process involves 3 steps to create a browser short-cut that sends an update notification request informing Yahoo of your new web pages.